buildings” to “less than or equal to 30 feet” as story height is ambiguous. Changed “four or more stories in height” to “exceeding 30 feet” as story height is ambiguous. At 30 feet or less, a 35-foot hand ladder can be used to access the roof. Above 30 feet, only an arial truck ladder can be used to access the roof.
at least two remote sides of the building” and replaced with the following including a new figure (for buildings over 30 feet high):
• Along the longest side for rectangular buildings with the smaller width no greater than 75 feet. Other building shapes will require further review. • Along at least two opposite sides of the building for rectangular buildings with the larger width no greater than 150 feet. Other building shapes will require further review.
• For buildings that don’t meet the previous criteria, fire lanes shall be provided in another manner approved by the fire code official that optimizes firefighter access to the roof. Optimization often includes fire lanes that allow for aerial truck ladder capability to most building outside corners, multiple building sides, and ladder angles between 60 to 75 degrees (a 92 foot ladder at an 8 foot high bottom pivot point can be used to determine this angle).
These changes provide two prescriptive methods for determining laddering for a building and a non-prescriptive method for more complex buildings. A new figure was provided to clarify the bullet points above. Changes are not more restrictive than the previous version.
Pages 7 and 8: Section 2.7. Added two administrative changes to fire lanes so vehicle grade and angle of approach and departure do not exceed OCFA vehicle capabilities.
Pages 10, 13 and 14: Section 3.5. The fire lane – no parking signs maximum interval has been increased from 50 feet to 100 feet. Signage at 50 feet is too numerous and visually unappealing.
warns the applicant that the plan will not be approved if it requires a water availability evaluation.
ITEM 8.1 - Attachment E
out all forms.
only.
understanding of hose pull length.
ITEM 8.1 - Attachment E
SUMMARY OF SIGNIFICANT CHANGES TO GUIDELINE C-05
The following is a summary of the significant changes to Guideline C-05 (page references are to the final strikeout version). Deletions are in red strikeouts and additions are in blue underlines.
No changes were made to this guideline that are more restrictive except for reference to the State requirements in Local Responsibility Area (LRA) High Fire Hazard Severity Zones (HFHSZ) and several areas where OCFA needed to match minimum State requirements. To make an easier to follow and readable guideline, significant changes were made that do not impact design or construction (basic clarification, documentation of current practice, administrative or process requirements, etc.) throughout the first 29 pages of this guideline.
Changes that impact design or construction are identified below.
Pages 5 and 14: Referenced additional requirements in the LRA HFHSZ. (State required)
(State required)
increased the vertical separation from vegetation below from 2 feet to 6 feet. (State required)
trees increased from 3 times the height to 4 times the height. For slopes exceeding 40%, spacing between shrubs and trees increased from 3 times the height to 6 times the height. (State required)
ITEM 8.1 - Attachment F
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Existing
Revised
Deleted
New
2025 CWUIC
CODE SECTION
2022 Code
Section
TITLE/SUBJECT COMMENTS/JUSTIFICATION STATUS
602.4 CFC 4903.3 Fuel modification plans Amendment relocated from the deleted CFC Chapter 49 to the new CWUIC Chapter 6 with no changes to the amendment language.
Existing
Appendices F &
G
2025 California Wildland-Urban Interface Code (CWUIC) - OCFA Amendment Summary Legend
Appendices
(Not For Adoption)
Only 2 of the 8 appendices included in the 2025 California Wildland-Urban Interface Code (F & G) are adopted by the State. OCFA is not proposing adoption of any additional appendices or amendments to them beyond what the State has already adopted.
This 2022 amendment is being carried forward into 2025 amendment package. Minor editorial/clerical changes may have been made, but they do not have material regulatory effect.
A modified version of the 2022 amendment is being carried forward. Changes in scope or wording are significant relative to the 2022 version, or they may impact regulatory effect.
This 2022 amendment is not being carried forward into the 2025 amendment package.
This is a new amendment in the 2025 amendment package.
Chapter 6 - Fire Protection Requirements
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ITEM 8.1 - Attachment G
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